Question 1 ( Which one of the following is a counterexample to the statement "If dlmn, then dim or din"? Od=10, m=20, n=30 Od=2, m=1, n=1 d=10, m=2, n=5 Od=2, m=3, n=4 Question 2 (0 A relation S is defined on R as follows: (x, y) ESifa sy. R is an equivalence relation. a) Truc b) False Question 3 (4 points) Calculate 619 div 8